the games i have played with the most infuriating bug-related experience (ranked by how much the bug experience pissed me off when it happened)
1) arcanum. don't get me started.
2) fallout 1. when this game was first released there were some insanely awful bugs in it.
3) CoD world at war.
4) dragon age 2.
all four of the above games had bug issues arise which caused me to have to restart after more than 20 hours of play. fallout 1 was the only one of them that restarting was just as much fun as continuing would have been. i didnt even bother restarting world at war, that game was a piece of s**t
fallout 1 is possibly my favorite game of all time. and yet it gave me the second most infuriating bug experience of my gaming career, so what does this tell you? some bugs, even very frustrating ones, can be ignored if the game is worth it.
also: note that new vegas and fo3 and oblivion etc etc don't even rank up there, cause those bugs were never more than minor inconveniences or ctd's